Improvement in box-openers



@dirti @frn THOMAS' B. HENKLE, or KNIGHTsrowN, INnIANA.

Letters Patent No. 111,207, dated January 24, 187

-lMPRovEMeN-r IN Box-OPENRS.

The Schedule referred to in these Letters Patent andmaking of the same.

To all whom fit may conce/rn Be it known thatl, THOMAS B. HENKLE, of'

Knightstown, county of Henry, State of Indiana,'

have invented anew and usefull Improvement in Box-0peners; and Idovhereby` declare the following to be a full, clear, and 'exactdescription of the same, reference being had to the accompanying drawingmaking a partei this speciiication, in which the figure represents aside elevationofthe instrument, showing its operation'in opening a box.

rlhis invention 4relates to an 'instrument for opening boxes, removinghoops 'from barrels, and for other similar purposes; and

My improvement consists in a novel construction of such a device, whichwill be specifically set forth in the. following description and claim.To enable those skilled inthe art to make and use my invention, I willproceed to describe its operation ,and construction'.

In the annexed drawing- A represents the hand-lever;l

B, the fulcrum-bar; and

C, the lifting-hook.

'I he'hand-lever terminates at one end in a iiattened bar constructedwith ears, A1 and A, in which holes are bored for the reception of the,pivots upon which the fulcrurn-barand 1ifting-hook respectively` turn.

By rcferencevto the drawing it will be` seen tnat the axis of thefulcrnm-bar is onlynslightly in advance of that of the lifting-hook, bywhich arrangement a powerful leverage is exerted upon the bookin liftingthe hand-lever. s Y' The-pivoted end of the fulcrum-bar is bifurcated,

the jaws fitting over the ear A1 ofthe hand-lever. It has the bow-shapedform shown, to permit the liftinghooks to operate within it, andterminates at its lower end in a dog, B', which enters, the wood at theside of the box to be opened.

The lifting-hook is also bifurcated, hung by its jaws on the pivot inthe ear A, and is constructed with claws, O', bent inward at rightangles to it.

In operating the tool, the fulcrum-bar may be .thrown back over thehand-lever to allow a hammer v to be used in driving the claws of thelifting-hook under the cover of the box.

Thefulcrum-bar, being turned .back into the position shown in thedrawing, enters by its, do'g the Wood on the side of the box, when, byraising the outer end of the hand-lever, the hook will be lifted,removing the top of the box, .the lfulcrum-bar serving to hold the bodyof the box firmly down upon the door. Having thus described myinvention, l What I ,claim,rand desire to secure by Letters Patent, is-The device for opening boxes and for similar pur-v poses herein'setforth, composed of the hand-lever A A1 A, Fulcrum-bar B B', andlifting-hook O C', constructed and arranged relatively to one anothersubstantially as specied.

In testimonylwhereof ,I have signed my lname to witnesses.

this specication in the presence,a of two subscribing rrHos. n. HENKLE.y

